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Power supply device and vehicle including the same

a power supply device and power supply technology, applied in the direction of electric devices, driver interactions, propulsion using engine-driven generators, etc., can solve the problems of undesirable waste of electric power stored in batteries, inability to disclose any specific method to solve such problems, and inability to reliably increase the temperature of power storage devices, so as to prevent the effect of reducing energy efficiency

Active Publication Date: 2010-01-07
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0007]An object of the present invention is to provide a power supply device that can more reliably increase temperature of power storage unit while preventing decrease in energy efficiency.
[0020]Therefore, according to the present invention, a power supply device that can more reliably increase the temperature of power storage device while preventing decrease in energy efficiency can be provided.

Problems solved by technology

On the other hand, as the power storage unit stores electric energy utilizing electrochemical action, charge / discharge characteristics thereof are susceptible to a temperature.
Therefore, electric power stored in the battery is undesirably wasted.
The reference above, however, does not disclose any specific method to solve such a problem.

Method used

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  • Power supply device and vehicle including the same
  • Power supply device and vehicle including the same
  • Power supply device and vehicle including the same

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Embodiment Construction

[0029]In the following, embodiments of the present invention will be described in detail with reference to the figures. In the figures, the same or corresponding portions are denoted by the same reference characters and description thereof will not be repeated.

[0030][Vehicle Configuration]

[0031]FIG. 1 is a schematic configuration diagram showing a substantial part of a vehicle including a power supply device 100 according to an embodiment of the present invention.

[0032]Referring to FIG. 1, the vehicle includes power supply device 100, a first inverter (INV1) 40, a second inverter (INV2) 42, a third inverter (INV3) 44, motor-generators MG1, MG2, and a drive ECU (Electrical Control Unit) 50.

[0033]Inverters 40, 42, motor-generators MG1, MG2, and drive ECU 50 configure a drive force generation unit generating drive force of the vehicle. In the present embodiment, the vehicle runs by transmitting to wheels (not shown), drive force generated by electric power supplied to the drive force g...

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Abstract

A power supply device includes a power storage unit capable of being charged and a control unit controlling charging of the power storage unit. Control unit includes a battery ECU for setting, at the start of charging of the power storage unit, a target value of state of charge of the power storage unit to a first value based on the condition of power storage unit and setting, when a temperature increase instruction (change instruction) is received after the start of charging, the target value to a predetermined second value higher than the first value, and a converter ECU for executing the charging process so that the state of charge of the power storage unit attains to the target value.

Description

TECHNICAL FIELD[0001]The present invention relates to a power supply device and a vehicle including the same. More specifically, the present invention relates to a power supply device including a power storage unit, as well as to a vehicle including the same.BACKGROUND ART[0002]Recently, considering environmental issues, attention has been paid to a vehicle employing a motor as a drive power source, such as an electric vehicle, a hybrid vehicle and a fuel cell vehicle. Such a vehicle includes a power storage unit implemented, for example, by a secondary battery or an electric double layer capacitor for supplying electric power to the motor, and converting kinetic energy to electric energy during regenerative braking and storing such electric power.[0003]In such a vehicle employing the motor as the drive force source, in order to enhance acceleration performance and running performance such as travel distance, greater charge / discharge capacity of the power storage unit is desired. He...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): G08B17/00H02J7/04B60L11/18H01M10/44H01M10/60H01M10/615H01M10/625H01M10/633H01M10/637H01M10/643H01M10/651H02J7/00
CPCB60L11/1851B60L11/1875H01M10/425H01M10/5022Y02T10/7005Y02T10/705H01M10/5006H01M10/44H01M10/615H01M10/633B60L2240/529B60L2240/545B60L2240/547B60L2240/549B60L2250/12B60L2250/16B60L2260/22B60L2240/527Y02T10/7072Y02T90/14B60L53/14B60L50/61B60L50/16B60L53/60B60L58/12B60L58/27B60L58/24Y02T10/62Y02T10/70Y02T90/12Y02E60/10B60L3/0046Y02T90/16
Inventor ICHIKAWA, SHINJIISHIKAWA, TETSUHIRO
Owner TOYOTA JIDOSHA KK
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